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BAGHDAD, IRAQ - JULY 23: U.S. Defense Secretary Ash Carter and Iraqi Defense Minister Khalid al-Obeidi shake hands as they exchange gifts July 23, 2015 at the Ministry of Defense in Baghdad, Iraq. Carter is on a week long tour of the Middle East focused on reassuring allies about Iran and assessing progress in the coalition air campaign against the Islamic State in Syria and Iraq. (Photo by Carolyn Kaster-Pool/Getty Images)